Don't allow users to instantiate the StreamLogger class

fixes #8823

diff --git a/lib/base/streamlogger.ti b/lib/base/streamlogger.ti
index a5f028508382915b280b828cbe2d78711017a6fb..08696203d0fa39434a118a7aa91706b4e0bab989 100644 (file)
--- a/lib/base/streamlogger.ti
+++ b/lib/base/streamlogger.ti
@@ -22,7 +22,7 @@
 namespace icinga
 {
 
-class StreamLogger : Logger
+abstract class StreamLogger : Logger
 {
 };